Oil and water extractor



Fh 7, 1933 s. BRAMSE ET AL 1,896,833

voIL. AND WATER EXTRACTOR Filed March 25, 1931 3 Sheets-Sheetl l z l KEW Feb. 7, 1933. s. BRAMsEN ET AL OIL AND WATER XTRACTOR 5 Sheets-Sheet 2 Filed March 2,5, 1951 Feb 7, 1933 s. BRAMSEN ET AL.

OIL AND WATER EXTRACTOB Filed March 25, s sheets-sheet s fnvenff Cfvend rdmfeo fr i w n@ www Planted Feb. 7, 1933 UNITED STATES PATENT OFFICE SVEND BBAISEN AND FRITZ WAHLIN, 01?' CHICAGO, ILLINOIS, ASSIGNORS T0 BINXS HANUFACTUBING 'WARE on. AND WATER nx'raac'ron Application vtiled Iarch 25, 1931. Serial No* 5125,070.

Our invention relates to liquid and gas y large drop in the pressure of the gas.

In some further aspects, our invention aims to provide a separator of this class which will initially cause the separated liquid contents of the gas to collect into drops of such a size and weight that gravity will cause these drops to descend into the lower portion of the separator, while permitting the gas thereafter to ascend to a higher portion of the separator. Furthermore, our invention aims to provide simple and efective balile means for collecting residual liquid contents of the ascending gas into further drops and causing these drops to flow out of the general path of the ascending gas, and for thereafter filtering the gas to clarify it.

Moreover, our invention aims to provide a separator of this class which will permit a ready removal of the baille means and of the filterin means, so as to allow a cleaning of the ba e means and a renewal of the filtering material, and which can be constructed so as to permit this without detaching the initialliqlliid-collecting means.

urthermore, our invention aims to provide a separator of the above recited characteristicswhich will be durable, easily connected to the piping for the gas, and easily manufactured.

In its commercial applications, our invention is articularly suited for separating compresse air both from moisture present in the air and from lubricating oil carried with the air from the compressor; hence we are describing our invention in corresponding embodiments in the following specification, from which further and more detailed objects will appear, and are illustrating such embodiments in the accompanying drawings. However, we do not wish to be limited as to` the uses of our here disclosed liquid and gas separator.

In the drawin Fig. 1 is a central, vertical and longitudinal section through a liquid 'nular bottom member of the casing of COMPANY, OF CHICAGO, ILLINOIS, A4 CORPORATION rI'JF DELA- and gas separator embodying our invention,

looking from the front of the separator.

Fig. 2 is a fragmentary side elevation of the same separator,--with the upper portion sectioned ina plane at right angles to the section of Fig. l, namely along the linel 2 2 of Fig. 3.

Fig. 2 A is a diametric section of the anthe separator.

of the separator. a

Fig. 4 is a horizontal section taken along the line 4-4 of Fig. 1. v

Fig. 5 is a horizontal section taken along `the line 5-5 of Fig. 1.

beFig. 6 is aside elevation of the baiile memr. Fig. 7 is a horizontal section throu h the baiile member along the line 7'-7 of ig. 6,

loolzing'upwards. Q

F'g. 8 is a central and longitudinal section,

taken in the same plane as Fig. 1 through another embodiment of our invention.

Fig. 9 is a fragmentary side elevation of the upper portion of the separator of Fi 8, with a part thereof sectioned along the ine 9--9 of Fig; 8.

In each of the illustrated embodiments, we accomplish the separation of liquid from the gas in the following general manner:

(l) By first having this fluid mixture pass downward within a tubular annular separating chamber containing metal shavings or the like upon which li uid will collect and permitting the collecte drops of liqui to pass by gravity into the lower sedimentcollecting portion of the separator casing, into which lower portion the gas also passes. (2) By next having the fluid follow a circuitous pathupwardly between bales disposed both for collecting residual liquid particles and for guiding the resulting drops of y G0 Fig. 3 is a plan view of the cover casting includes an upright shell 1- supported at its `upper end by threading it 1nto the dependingllange 2 A of a cover 2 which has at its reara supporting bracket 3. This cover is u'prig t cover i art 2 B which is threaded at its lower end or connection to the pipe or hose to which the purified gas is to be delivered. The cover also has au interiorly threaded portion 2 C adjacent to the cover 2 A to afford an inlet for the gas.

lian e Threaded upon the lower end of the tubular shell 1 is a bottom casting 7 having a central bore into vwhich the upwardly directed stem 8 A of a bottom plug 8 is threaded, and this plug has a peripheral flange 8 .B underhanging the bottom casting and d1sposed for c a against that casting. The plug 8 also has an axial bore 10 into which the upper 'end of a liquid discharge pipe 11 can be'threaded,

and the' bottom desirably has at its rear a second supporting'bracket 12.

The part of the bottom'castxng 9 radiall outward of the bore into whichthe stem 8 is threaded has a plurality of radial webs 13, each of which webs has near its inner ends a horizontal shoulder 13 A (Fig. 2 A). Seated at its lower end on these shoulders 13 A of the several webs 13 A is an inner.

tube 14 which has its upper end extending into and centered by a bore 15 formed 1n vthe top castin -2 below the said discharge chamber 4. 's inner tube has a plurality of lateral ports 16 which desirably are disposed at a uniform hei ht above the, lower end ofthe tube and consi erably below the midhei ht of the tube.

xtending across the annular tubular space between the 'shell land the inner tube 14 above the ports 16 and desirably near these ports, is a an ahing-supming ring 17 (Fig. 4) which is provide with a plurality of perforations 17 A, and which ring supports a liquid collectin filling 18 in the said annular space. This ing preferably consists of metal elements formed so as to iny teroept the direct downward' llow of fluid throu h the said annular space a lar e number o? times, while occupyina re atively small fraction of that space. or this purpose, we have found thin shavings per or the like uite suitable.

Disposed wit in the inner tube 14, but of less height than the latter, is a baille member, shown. in front and side elevations respectively in Figs. 1 and 6, which baille member also supports the filtering portion of our separator. This baille member includes a o f copdownwardly tapering stem 19, an upper head 2O of somewhat smaller diameter than the m ing a packing washer' 9j bore of the inner tube 14A and a peripheral f only a small fraction of the space within t e `portion of the inner tube 14 which houses this stem.

The baille member also has a plurality of ballie webs disposed between the flange 21 and the ports 16 inthe inner tube, the superposed balile webs being in relatively staggered dis osition so as to compel the rising gas to fo ow circuitous paths. Moreover, the major peripheral ortions of all of the baille webs are preferab y formed for slidably fitting the bore of the inner tube 14, and some of these webs have upright notches 24 in their peripheral portions to afford liquid passages close to the said bore.

To obtain such a baille web arrangement in a baille member 'consisting of `a simple',

casting, .we desirably disposethe baille webs in two sets which diverge downwardly from a common vertical plane P (Fi 8), the superposed webs in each set extending alternately to one of the cross-formin the-stem 19 and beyond the latera ed s of this stemto the bore of the inner tu 14. Thus, Figs. 1 and 6 show as one of these sets four pairs of downwardly diver ing baille webs 22 and 22 A, with the webs o each pair mer ing into one of the cross-forming webs of t e stem 19 but havin their lower ends spaced by considerable bore of the inner tube 14. lInterposed beistances from the' tween each two consecutive pairs of inter-Y connected baille webs 22 and 22 A are two spaced baille .webs 23 and 23 -A which have t eir inner edges freely spaced from each other, while their outer edges are curved forslidably itting the bore of the said inner tube, and each such outer edge portion has an upright liquid discharging notch 24.

Sleeved upon the head 20 of the bale mem ber and seated on the fiange 21 of that member is the lower end of a tube 25 which forms the peripheral wall of a filter casing .and which is lnearly filled with a highl porous filtering materlal-as for example oose felt appliance operated by compressed air-the V air is admitted through the cover inlet 2 C and irst fows downwardly through the annular chamber between the shell 1 and 'the ,inner tube 14. Since this chamber can readily be of many times reater cross-sectional area tsar; the inlet L, the admitted air exnaar 'ice

lzed form will condense on these shavmgs and will collect into drops, and these drops will partly trickle through the mass of shavlao ings Vand partly flow down along the outer wall of the inner tube 14 and along the bore of the shell 1.

' The resulting drops of liquid will then fall by avity through the perforations 17 A in t e shavings-supporting ring 17 into the bore of a-drip-confining tube 28 which vseats on lthe upper edges of the radial webs 13 of the bottom member and which tube l impe supports the saidring 17. Since the roportion of such oil, water or other liquid to the airis usually quite small, the trlckling or dropping of the shavings-collected liquid through the said perforations 17 A will not of the air through these perforations.`

After thus reachin the annular drip y chamber (between the rip-confining tube 28 and the lower part of the inner tube 14)v the air passes through the orts 16 of the inner tube into the interior o the latter and flows upwardly between baie webs incircuitous paths, as for example along the dotted lines 30 in Fig. 1. During this winding between 'the baille webs, the wide face portions of these webs also cause any residual liquid inthe `v air to collect on these webs, and the inclina v tion of these webs will cause such collected outlet bore, we preferably. form the upper end of the plug 8 with a cup-shaped depres sion 8 C, as shown` in Fig. 1. 1

When the upwardly owingair or other gas has passed the, uppermost baille webs, this gas enters the interior of the filter casin'g through upright bores r31 in the head 20 of the bailie member, and passes through the filtering material 26 and on throu h the per- 'forations in the filter-covering dis 27 to the discharge chamber 4, 'from which chamber e or interfere lwith the speedy passage' the gas reaches the outlet 6 through theA duct 5. v

In practice, the total area of the perforations 17 A in the shavings-supporting ring 17 can readily be made considerably greater than the elective area of the inlet 2 C, anda similarly greater total area than' that of the inlet can also be rovided for theinner tube ports 16, the head) orts.31 and the lilter. coveringdisk ports. material 26 can be highly porous, so that its effective airpassage area cSparticularly when housed by a tube 25 of mu greater diameter ythan'the bore ofthe gas inlet 2 C) will also be considerably greater than the effective area of the said gas inlet bore. Consequently, our separator, although affordin two consecutive liquid-condensing and liquid-collecting o also, the filtering i 5 means, together with a supplemental gas" filtering provision does not materially re, tardthe flow of the gas'. Indeed, we have found in practice that our above described liquid and gas separator, when interposed between an air compressor and a group of paintraying appliances will cause a much lower S Ylli-op in pressure than heretofore customary liquid and-gas separators of much smaller li uid-separating effectiveness.v l

n the simplified embodiment of Figs. 8

' and 9, our separator has the same cap member, baiile member, filtering arrangementand bottom plug as in the previously described embodiment. However, the shell 33 has circumferentially spaced indentations 34 which aiord inward projections for conjointly supporting an outwardl directed radial fiange 35 on the lower end o the inner tube 36. This vlower tube end is disposed considerably above the lower end of the shell 33 andthe flange 35 has a plurality of perforations 37, so that this shell-'supported flange serves as a substitute for a at shavings-supporting ring 17 in Fig. l; thereby making it unnecessar to provide the ring-supporting tube 28 ofy ig 1, and alsoeliminatmg the need of the webs 13 (Fig. l) in the annular bottom member of the casing. u

With each of the 'illustrated embodiments, the baiiie member, and the lter-housing tube 25 together with the filtering material and the retaining disk 27 `constitute a unit which will slide out by gravity when the bottom plug 8 is detached from the annular bottom member of the casing, thereby permitting a` convenient renewal of the lilterlng material aswell as a c aning of the baie member.

In both of the illustrated embodiments, the metal-sh avings or other liquid-collecting particles 18 can readily be inserted from the top of the casing before the shell 33 is threaded into the cap; and when this shell is unscrewed `from the cap, these shavings can be poured out for cleaning them or for substituting others.

In practice, we may also provide an 'anglem @"inlet, thereby facilitating the flow of the yentering gil-'S around the UPPer Portion of vision may not the inner tube (14 or 38), so that this gas will be more speedily distributed (through ports in the horizontal flange of the ring 39) through the shavings.- When disposed as in Figs. 8 and 9, the upright web of this ring will engage the top casting 2 if our separator is swunv to a horizontal position or is inverted, thereby retaining the shavin s within the shell of the separator during t 1e ship;

pi-i ofthe latter.

Wever, while we have heretofore described' our invention in embodiments including numerous desirable details of construction and arrangement, we do not wish to be limited 1n these respects, since changes could obviously be made without departing either from the spirit of our invention or from the appended claims.l So also, we do not Wish to be limited to the materials employed for its various parts. Nor do we wish to be limited to the conjoint use of numerous features of lnvention, particularl since the a1r filtering probe needed for many uses to which our separator is suited.

We claim as our invention:

1. In a liquid and gas separator, an up right tubular shell, a relatively smaller-diametred inner tube disposed within the shell concentric with the shell, a filling of l1qu1d- -collecting material in the annular space between the said tube and the upper portion of the shell, means within the shell for` supporting the liquid collecting materlal, afile means housed by the inner tube lntermedrate of the height of the tube, and gas-filtermg -means housed by the inner tube above the bafile means. V

2. In a liquid and gas separator, an assemblage of elements as per claim 1, includlng unitary means for supporting the bafHe means and the filtering means.

3.' In a liquid and gas separator, an assembla e of elements as per claim 1, including a fi ter casing laterally housing the filtering means, and single means for supporting the filter casing and the bale casing. n

1. In a liquid and gas separator, an uprlght housing, means partitioning the houslng to afford .an annular tubular chamber therein with the bottom of the chamber spaced up'- wardly from the bottom of the housing, the bottom of the chamber having perforations to permit fluid to issue downwardly from the said chamber; liquid collecting means disposed inthe said chamber; baffle means disposed inwardly of the said chamber and abovethe bottom of the chamber, the housing having an annular bottom memberand a detachable closure for the said member; and means for supporting the baille means from the said closure. i

5. A liquid and gasseparator 'including an upright housing having an inlet and an outlet both in its upper portion; liquid-collecting means disposed in annular formation in the radially outer portion of the housing and spaced upwardly from the bottom of the housing, baille means housed by the said liquid collecting means, partitioning means within the housing for compelling fluid admitted through the top of the housing to ass downwardly first through the li uid col ecting means and thereafter upwar ly past the bafile means, means for supporting the liquid- "'"eollecting means from the housing, and an vannular retainer member resting upon the top of the liquid-collecting means.

6. In a liquid and gas separator, an upright tubular shell, an inner and relatively smaller-diameter upright tube disposed in the upper portion of the shell concentric with the shell, a filling of liquid-collecting material in the annular space between the said shell and tube, material-sup orting means intermediate of the height of tiie shell for supportinv the li uid collecting material; balile means housed y the inner tube; and an annular bottom member attached to the shell and of larger bore than the baille means,

a plug normally closing the bore of the said bottom member, and means'for supporting the baliie means from the plug.

7. In a liquid and gas separator, an u right tubular shell, an inner and relativelyr smaller-diametered upright tube disposed in the upper portion of the shell concentric with the shell, a filling of liquid-collecting material in the annular space between the said shell and tube, material-supporting means intermediate of the height of the shell for supporting the liquid co lecting material; baille means housed by the inner tube; the means for supporting the li uid collecting material consist of a horizonte and perforated flange integral with the inner tube, thereby permittlng the said ange and the material supported by it to 'be withdrawn from the outer p shell conjointly with the inner tube.

8. In a llquid and gas separator, an upright tube through which the mixture of.

pair diverging downwardly from one of the said webs, and with the other pairs extending across the other web.

9. In a liquid and gas separator, a tube l and bafiie member assembly as per claim 8, in which the lower edge of each baie has its major portion fitting the bore of the'tube.

10. In a liquid and gas separator, a tube and baille members assembly as per claim 8, in which the said other pairs of bales have the upper edges of the bales ofeach pair freely spaced from each other by a distance less than the spacing of the upper ends of the baiiles of each pair alternating with the Said other pairs. A

v 11. In a liquid and as separator, an up- -right tube through w ich the mixture of liquid and gas flows upwardly; an upright baille member including relatively super osed bales disposed within the tube; the aille SVEND BRAMSEN.

FRITZ WAHLIN. 

